CN103938867B - A kind of flooring and toilet or the junction construction method and device used of balcony - Google Patents
A kind of flooring and toilet or the junction construction method and device used of balcony Download PDFInfo
- Publication number
- CN103938867B CN103938867B CN201410180056.XA CN201410180056A CN103938867B CN 103938867 B CN103938867 B CN 103938867B CN 201410180056 A CN201410180056 A CN 201410180056A CN 103938867 B CN103938867 B CN 103938867B
- Authority
- CN
- China
- Prior art keywords
- steel pipe
- toilet
- hollow steel
- balcony
- reinforcement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
A kind of flooring and toilet or the junction construction method and device used of balcony, belong to technical field of building construction.Its step is as follows：Assembling reinforcement skeleton, framework of steel reinforcement set split heads and reinforcement supporting member is reinforced；Place cut-off assembling support for shuttering；Concrete cast template is loaded onto, and is sealed off the area；Cast concrete；Maintenance, form removal.Flooring of the invention is good with toilet or balcony junction quality, and its construction quality qualification rate reaches more than 98.9%, greatly reduces maintenance probability and cost；The method that the present invention has drawn control balcony and toilet difference of height, not only solve the excessive phenomenon of water for preventing toilet, balcony, again for later stage decorations are laid a good foundation, by owner, management, Quality Supervision Station favorable comment, be enterprise invited society prestige；Present invention, avoiding the later stage repairing of balcony and toilet concrete structure, labour cost, fee of material are reduced, the finishing in later stage and hydropower installation is eliminated chiseler's expense.
Description
Technical field
The invention belongs to technical field of building construction, and in particular to a kind of constructing operation is convenient, can effectively improve junction
The flooring of construction quality and toilet or the junction construction method and device used of balcony.
Background technology
At present, the problems such as easily there is leak between flooring and toilet or balcony in building a building etc., particularly always
House the inside, this phenomenon especially severe.750 points of relevant technical staff's random inspection, qualification rate is 86.9%, by examining
Examine discovery and drainage occur, influenceing the principal element of the concrete solid quality has：Difference of height not substantially, surface irregularity,
Reveal at difference of height and occur bending etc. at muscle, difference of height.Balcony, toilet difference of height control it is bad, the multidirectional stream of water can be caused
Dynamic, such as current flow backward to parlor and bedroom, once seepy question occurs, rehabilitation cost is high, and repair rate is also high, and has been difficult to
It is complete to repair, bring many inconvenience to user and unit in charge of construction.
The content of the invention
For the above-mentioned problems in the prior art, it is an object of the invention to provide a kind of constructing operation convenience, energy
Effectively improve the flooring and toilet or the junction construction method and device used of balcony of junction construction quality.
A kind of described flooring and toilet or the junction construction method of balcony, it is characterised in that comprise the following steps：
1）Assembling reinforcement skeleton；
2）By design drawing, flooring and toilet or the separator bar of balcony are marked on framework of steel reinforcement, in toilet or sun
Platform periphery separates line position and framework of steel reinforcement is reinforced, and split heads and reinforcement supporting member are set between reinforcing bar surface layer and bottom；
3）Cut-off assembling support for shuttering is placed on the framework of steel reinforcement after reinforcing；
4）Concrete cast template is loaded onto, and is sealed off the area, forbid workman pour smash before trample；
5）Cast concrete：Routinely pouring procedure cast, when toilet or balcony is constructed, accomplish it is floating in place, it is high
Low difference is corresponding with layout design；
6）Maintenance, form removal.
A kind of described flooring and toilet or the junction construction method of balcony, it is characterised in that step 2）Described in
Split heads includes two U-shaped reinforcing bars and for connecting two bar dowels of U-shaped reinforcing bar, and described U-shaped reinforcing bar grows 40 lis using Ф 10
The reinforcing bar of rice is obtained, and each curved 90 degree of reinforcing bar both sides form U-shaped reinforcing bar, and three edge lengths of U-shaped reinforcing bar are respectively 15 centimetres, 10 lis
Rice, 15 centimetres, bar dowel is that Ф 10 grows 10 centimetres of reinforcing bar.
A kind of described flooring and toilet or the junction construction method of balcony, it is characterised in that two described single u-shaped
Reinforcing bar is respectively welded and is fixed on the surface layer of framework of steel reinforcement and bottom, and two single u-shaped reinforcing bars grow 10 centimetres of bar dowel by Ф 10
It is welded to connect.
A kind of described flooring and toilet or the junction construction method of balcony, it is characterised in that described adjacent split heads
Spacing is 1-1.2m.
A kind of described flooring and toilet or the junction construction method of balcony, it is characterised in that step 2）Described in
Reinforcement supporting member is obtained at a right angle using the reinforcing bar electric welding of Ф 12, and described reinforcement supporting member is another while be welded on reinforcing bar
While being welded on base plate, adjacent reinforcement supporting member spacing is 1m.
A kind of described flooring and toilet or the junction construction method of balcony, it is characterised in that described reinforcement support
Toilet thickness low 0.5cm of the part height than layout design.
Cut-off assembling support for shuttering used by the junction construction method of described flooring and toilet or balcony, including by
The quadra body that two hollow steel pipes I and two hollow steel pipes II constitute by an active connection, it is characterised in that described is square
One group of reinforcement steel pipe is respectively provided with frame body corner, described reinforcement steel pipe two ends are separately positioned on the sky that termination is connected
On heart steel pipe I and hollow steel pipe II, described hollow steel pipe I is the side long of quadra body, and hollow steel pipe II is square box
The short side of frame body, the clear width of hollow steel pipe I sets one group of connection sheet, and two skies are inserted in the two ends termination of hollow steel pipe II respectively
Corresponding connection sheet is connected with hollow steel pipe I on heart steel pipe I.
Cut-off assembling support for shuttering used by the junction construction method of described flooring and toilet or balcony, its feature
It is that described connection sheet welding is arranged on the inside of hollow steel pipe I, the distance between two neighboring connection sheet is 30-60cm.
Cut-off assembling support for shuttering used by the junction construction method of described flooring and toilet or balcony, its feature
It is that latch is set on described reinforcement steel pipe, hollow steel pipe I is respectively arranged to install and inserts with the upper surface of hollow steel pipe II
The spliced eye of pin, described latch size is matched with spliced eye.
Cut-off assembling support for shuttering used by the junction construction method of described flooring and toilet or balcony, its feature
It is that the reinforcement steel pipe set on each angle of described quadra body is at least one.
By using above-mentioned technology, compared with prior art, the present invention has the advantages that：
1）Compactness in order to improve junction of the invention, it is to avoid there are the phenomenons such as pitted skin on surface, is set on framework of steel reinforcement
Split heads and reinforcement supporting member, and the size and structure of split heads and reinforcement supporting member are defined, the support force of framework of steel reinforcement is improved, make
On framework of steel reinforcement, framework of steel reinforcement is not deformed the cut-off assembling good frame of support for shuttering energy, so as to be avoided that underbraced
Problem, improves the convenience and construction quality of construction；
2）The present invention in order to avoid framework of steel reinforcement sink, tie with reinforcing bar well after, closed management is carried out to scene,
Operator tramples before preventing casting and compacting of concrete；
3）The present invention pour into a mould concrete when, by there is experience concreter to be constructed, accomplish it is floating in place, difference of height with
Layout design is corresponding, improves the flatness on its surface；
5）The present invention problem difficult in order to solve fixed support for shuttering form removal of the prior art, using adjustable size
Assembling support for shuttering replace traditional fixed support for shuttering, and assembling support for shuttering corner set strengthen steel pipe, strengthen steel
Latch is housed, the spliced eye set with relevant position on hollow steel pipe I and hollow steel pipe II is connected, and it can avoid defending on pipe
The obvious difference of height occurred with indoor terrace junction between life, therefore concrete is avoided the occurrence of without voids and pits, easy construction, and
And it is a kind of fabricated construction, convenient disassembly occupies little space, is easy to carry, and high recycling rate, improves economy
Benefit；
6）The present invention is by using above-mentioned construction method, easy to operate, short time limit, and constructing the flooring and health that obtain
Between or balcony junction quality it is good, its construction quality qualification rate greatly reduces maintenance from more than current 86.9% to 98.9%
Probability and cost；Technically, the method that the present invention has drawn control balcony and toilet difference of height, not only solving prevents
The excessive phenomenon of water of toilet, balcony, and for later stage decorations are laid a good foundation, by owner, management, Quality Supervision Station
Favorable comment, is that social prestige has been invited by enterprise；Economically see, after balcony and toilet concrete structure
Phase repairs, and reduces labour cost, fee of material, the finishing in later stage and hydropower installation is eliminated chiseler's expense.
Brief description of the drawings
Fig. 1 is the structural representation that cut-off of the invention assembles support for shuttering.
Fig. 2 is the hollow steel pipe I and the overlooking the structure diagram of hollow steel pipe II of cut-off assembling support for shuttering of the invention；
Fig. 3 is the hollow steel pipe I and the main structure diagram of hollow steel pipe II that cut-off of the invention assembles support for shuttering；
Fig. 4 is the reinforcement steel-tube construction schematic diagram that cut-off of the invention assembles support for shuttering.
In figure：1- latches, 2- hollow steel pipes I, 3- hollow steel pipes II, 4- connection sheets, 5- strengthens steel pipe, 6- spliced eyes.
Specific embodiment
Below in conjunction with Figure of description, the invention will be further described：
As illustrated, a kind of flooring of the invention and toilet or the junction construction method of balcony, comprise the following steps：
1）By design drawing, assembling reinforcement skeleton；
2）By design drawing, flooring and toilet or the separator bar of balcony are marked on framework of steel reinforcement, in toilet or sun
The periphery of platform, i.e. separator bar peripheral location is reinforced to framework of steel reinforcement, split heads is set between reinforcing bar surface layer and bottom and is added
Strong support member, described split heads includes two U-shaped reinforcing bars and for connecting two bar dowels of U-shaped reinforcing bar, described U-shaped reinforcing bar
The reinforcing bar for growing 40 centimetres using Ф 10 is obtained, and each curved 90 degree of reinforcing bar both sides form U-shaped reinforcing bar, the three edge lengths difference of U-shaped reinforcing bar
It it is 15 centimetres, 10 centimetres, 15 centimetres, bar dowel is the reinforcing bar that Ф 10 grows 10 centimetres, two single u-shaped reinforcing bars are respectively welded and are fixed on steel
On the surface layer and bottom of muscles and bones frame, two single u-shaped reinforcing bars are welded to connect by the bar dowel that Ф 10 grows 10 centimetres, adjacent split heads spacing
It is 1-1.2m；Described reinforcement supporting member is obtained at a right angle using the reinforcing bar electric welding of Ф 12, and described reinforcement supporting member is while weldering
It is connected on reinforcing bar, another side is welded on base plate, adjacent reinforcement supporting member spacing is 1m, and reinforcement supporting member highly compares drawing
The low 0.5cm of toilet thickness of design；
3）Cut-off assembling support for shuttering is placed on the framework of steel reinforcement after reinforcing fixed；
4）Concrete cast template is loaded onto, and is sealed off the area, forbid workman pour smash before trample；
5）Cast concrete：Routinely pouring procedure cast, when toilet or balcony is constructed, accomplish it is floating in place, it is high
Low difference is corresponding with layout design；
6）Maintenance, form removal.
As Figure 1-4, the assembling support for shuttering of the cut-off used by the present invention, it is included by two hollow steel pipes I 2 and two
The quadra body that hollow steel pipe II 3 constitutes by an active connection, can according to actual needs, by adjusting hollow steel pipe I 2 and hollow
The link position of steel pipe II 3, changes the length of quadra body, and one group is respectively provided with described quadra body corner
Strengthen steel pipe 5, described reinforcement steel pipe 5 two ends are separately positioned on hollow steel pipe I 2 and hollow steel pipe II 3 that termination is connected,
Described hollow steel pipe I 2 and hollow steel pipe II 3 is rectangular steel tube.
As Figure 2-3, hollow steel pipe of the invention I 2 and the activity socket connection of hollow steel pipe II 3, wherein hollow steel pipe I
2 is the side long of quadra body, and hollow steel pipe II 3 is the short side of quadra body, and short side typically is set into toilet
Or the side that balcony is fixed, one group of connection sheet 4 is set in the welding of the clear width of hollow steel pipe I 2, between two neighboring connection sheet 4
Distance is 30-60cm, therefore, if it is desirable to zoom in or out quadra body, by the termination of hollow steel pipe II 3 outwards or inwards
It is adjusted in corresponding connection sheet 4, insertion connection sheet 4 is connected with hollow steel pipe I 2；Hollow steel pipe II 3 is with hollow steel pipe I 2
Assembled is connected, and is easy to dismounting, easy to adjust.
As Figure 2-3, hollow steel pipe of the invention I 2 and the upper surface of hollow steel pipe II 3 are respectively separated one group of grafting of setting
Hole 6, spliced eye 6 can penetrate hollow steel pipe I 2 and hollow steel pipe II 3, it is also possible to not penetrate；As shown in figure 4, strengthening steel pipe 5
Two ends set latch 1, and the size of latch 1 is matched with spliced eye 6, strengthen steel pipe 5 and insert hollow steel pipe I 2 and hollow steel by latch 1
On the spliced eye 6 of pipe II 3, it is connected with hollow steel pipe I 2 and hollow steel pipe II 3, in order to improve the carrying energy that assembled separates template
Power, the reinforcement steel pipe 5 set on each angle of quadra body of the invention is at least one, and the present invention is preferably two,
Two be arranged in parallel.
If desired for the toilet that a size is 4500mm × 3000mm is built, using cut-off template of the invention, with each
, it is necessary to the cut-off board size for making is respectively as a example by two reinforcement steel pipes on angle：Hollow steel pipe I 2 is at least 4500mm, hollow steel
Pipe II 3 is 3000mm, and the length selected in the present invention is 4500mm, and hollow steel pipe II 3 is plugged on the most termination of hollow steel pipe I 2
Connection sheet 4 on, one group of spliced eye 6 is respectively provided with the two ends of hollow steel pipe I 2 and hollow steel pipe II 3, since steel tube head
Meter, distance is 200 mm between first spliced eye 6 and termination, and second spliced eye 6 is with the distance of first spliced eye 6
800mm, it is 715 mm that first is strengthened the length of steel pipe 5, and it is 1500 mm that second is strengthened length of steel pipe.
Its installation steps is as follows：According to the drawing for designing, the making of entity is carried out, according to the hollow steel pipe I of diagram
2nd, the rod member of hollow steel pipe II 3 be processed with making, first hollow steel pipe I 2 and hollow steel pipe II 3 are overlapped, then parallel
Reinforcement steel pipe 5 be placed on hollow steel pipe I 2 and hollow steel pipe II 3, using latch 1 and spliced eye be effectively connected, most
Pouring for concrete is carried out afterwards to smash and conserve, when concrete curing to final set, starts to remove the cut-off formwork structure, first remove and add
Strong steel pipe 5, removes hollow steel pipe I 2, hollow steel pipe II 3 afterwards, recycles and reuses.
Assembled cut-off formwork structure can avoid the obvious difference of height occurred in toilet and indoor terrace junction
Problem, the concrete for obtaining without voids and pits, and convenient disassembly, be easy to carry, economic benefit it is obvious.
The present invention by use above-mentioned technology, flooring is constructed with toilet or balcony junction, solve leak,
The problems such as there is pitted skin on surface, and the junction target inspection that the present invention is obtained, check totally 250 points of points, and qualification rate 97.6% reaches
Moving target is arrived, after implementing construction method of the invention, concrete of basement construction quality qualification rate is from before activity
86.9% to after activity 98.9%, greatly reduce maintenance probability.
Technical benefits of the invention：By the construction method, technical staff is set to have grasped control balcony or toilet and building
The method that there is difference of height between face, not only solves the excessive phenomenon of water for preventing toilet, balcony, and be later stage decorations
Lay a good foundation, by owner, management, Quality Supervision Station favorable comment, be enterprise invited society prestige.
Economic benefit of the invention：The later stage repairing of balcony and toilet concrete structure is avoided, labour cost is reduced
And fee of material；And the finishing in later stage and hydropower installation is eliminated chiseler's expense.
Claims (2)
1. a kind of flooring cut-off working with the junction of toilet or balcony is used and assembles support for shuttering, including by two hollow steels
Pipe I（2）With two hollow steel pipes II（3）The quadra body for constituting by an active connection, it is characterised in that described quadra
One group of reinforcement steel pipe is respectively provided with body corner（5）, described reinforcement steel pipe（5）Two ends are separately positioned on what termination was connected
Hollow steel pipe I（2）With hollow steel pipe II（3）On, described hollow steel pipe I（2）It is the side long of quadra body, hollow steel pipe
Ⅱ（3）It is the short side of quadra body, hollow steel pipe I（2）Clear width sets at least 6 connection sheets（4）, hollow steel pipe II
（3）Two hollow steel pipes I are inserted respectively in two ends termination（2）Upper corresponding connection sheet（4）With hollow steel pipe I（2）Connection, it is described
Connection sheet（4）Welding is arranged on hollow steel pipe I（2）Inner side, two neighboring connection sheet（4）The distance between be 30-60cm, it is described
Reinforcement steel pipe（5）Upper setting latch（1）, hollow steel pipe I（2）With hollow steel pipe II（3）Upper surface be respectively arranged to peace
Plug pin（1）Spliced eye（6）, described latch（1）Size and spliced eye（6）Matching.
2. flooring according to claim 1 cut-off working with the junction of toilet or balcony is used and assembles support for shuttering,
It is characterized in that the reinforcement steel pipe set on each angle of described quadra body（5）At least one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410180056.XA CN103938867B (en) | 2014-04-30 | 2014-04-30 | A kind of flooring and toilet or the junction construction method and device used of balcony |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410180056.XA CN103938867B (en) | 2014-04-30 | 2014-04-30 | A kind of flooring and toilet or the junction construction method and device used of balcony |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103938867A CN103938867A (en) | 2014-07-23 |
| CN103938867B true CN103938867B (en) | 2017-07-04 |
Family
ID=51186717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410180056.XA Expired - Fee Related CN103938867B (en) | 2014-04-30 | 2014-04-30 | A kind of flooring and toilet or the junction construction method and device used of balcony |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103938867B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109208753B (en) * | 2018-09-10 | 2023-11-21 | 中国建筑第四工程局有限公司 | Novel device for limiting displacement of assembled balcony and construction method thereof |
| CN110469107A (en) * | 2019-07-12 | 2019-11-19 | 中国华冶科工集团有限公司 | The construction of toilet root shaper and construction method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203867175U (en) * | 2014-04-30 | 2014-10-08 | 浙江宏超建设有限公司 | Adjustable partition assembling support formwork |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07279410A (en) * | 1994-04-15 | 1995-10-27 | Taisei Corp | Assembling method of floor-section stepped form |
| CN102677896B (en) * | 2012-05-23 | 2014-09-17 | 中天建设集团有限公司 | Bathroom settlement plate shaping mould and construction method |
| CN202731295U (en) * | 2012-09-05 | 2013-02-13 | 中建七局第二建筑有限公司 | Subsided frame template |
| CN103015708A (en) * | 2012-12-05 | 2013-04-03 | 中天建设集团有限公司 | Sized lowering plate supporting die frame body |
-
2014
- 2014-04-30 CN CN201410180056.XA patent/CN103938867B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203867175U (en) * | 2014-04-30 | 2014-10-08 | 浙江宏超建设有限公司 | Adjustable partition assembling support formwork |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103938867A (en) | 2014-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103696359B (en) | A kind of prefabricated and cast-in-place bridge pier body structure of combining and construction method | |
| CN103290967B (en) | A kind of multi-ribbed hollow composite floor slab and manufacture method | |
| CN104631512A (en) | Post-cast strip beam and slab construction method adopting formwork hanging method | |
| CN104175398B (en) | Make the mold and method of prefabricated case beam framework of steel reinforcement | |
| CN105625566B (en) | Assembly concrete orthogonal-diagonal lattice space lattice box structure tube-in-tube structure | |
| CN207616844U (en) | Foundation platform precast concrete side form and molding machine | |
| CN204019724U (en) | Make the mold of prefabricated case beam framework of steel reinforcement | |
| CN110965474A (en) | Construction method of cable tower cross beam | |
| CN103821180A (en) | Double-water stop structure for concrete expansion joint and manufacturing and construction method for double-water stop structure | |
| CN110509396A (en) | A kind of production method of superimposed sheet, superimposed sheet production equipment and superimposed sheet | |
| CN206298900U (en) | A kind of diaphram wall built-in type steel encloses purlin plug system | |
| CN110792028B (en) | Construction method of cable-stayed bridge without back cables | |
| CN207829012U (en) | A kind of foundation pit support post is constructed with basement bottom board connecting node | |
| CN103938867B (en) | A kind of flooring and toilet or the junction construction method and device used of balcony | |
| CN100547174C (en) | The prefab form and the construction technology thereof of concrete flow passage gradual change fillet segment top board construction | |
| CN210263131U (en) | Assembled is from stagnant water underground pipe gallery structure | |
| CN104972550A (en) | Multilateral mould of site precast concrete pile and manufacturing method of precast concrete pile | |
| CN206722216U (en) | A kind of prefabricated girder of laminated floor slab | |
| CN109555252A (en) | The floor and shear wall structure of overhanging rectangle muscle and connection method | |
| CN105442737B (en) | A kind of complex heat-preservation floorboard and its construction method | |
| CN210315253U (en) | Novel aquatic tie beam bracket device | |
| CN107012985A (en) | A kind of prefabricated girder and the laminated floor slab construction technology containing the prefabricated girder | |
| CN209874083U (en) | Vertical mechanical connection structure of assembled shear force wall | |
| CN108756034B (en) | Overhead structure terrace and construction method thereof | |
| CN114855658B (en) | Movable improved assembled box culvert template and construction method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 310023, 128, Xihu District, Hangzhou, Zhejiang Applicant after: Zhejiang Hong Chao construction group Co., Ltd Address before: 310023, Zhejiang, Hangzhou, Xihu District, leaving 128 street, 5 floor Applicant before: ZHEJIANG HONGCHAO CONSTRUCTION CO., LTD. |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qian Aijun Inventor after: Ji Peichun Inventor after: Ma Guoqiang Inventor after: Yao Zhangpeng Inventor after: Li Yuanting Inventor after: Pan Min Inventor after: Jiang Jianbo Inventor after: Bao Li Inventor after: Xia Yinming Inventor before: Ji Peichun Inventor before: Zheng Jianxin Inventor before: Li Yuanting Inventor before: Pan Min Inventor before: Jiang Jianbo Inventor before: Shi Baoquan Inventor before: Yao Zhangpeng Inventor before: Bao Li Inventor before: Xia Yinming |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170704 Termination date: 20210430 |